I just finished installing my Directed 1500d and my Profile 75w X 4 amp. I went ahead and started my car and turned on the headunit, but there came no sound. As you would imagine, I went around to the back of the car and noticed that the power light on my profile amp was flickering (not in a periodical way, randomly) and my directed amp wasn't even on.
The first thing I checked was the remote turn on cables, which tested to be good. Then I took my dmm and measured the voltage to the terminals while the amp was off. It read out to be 14.27 V, which is good. Then after I turned on the amp, the voltage read 7.1 V, which is obviously the problem.
What has me stumped is the wiring is the exact same wiring that I used on the amp before, and it worked perfectly. The only thing I adjusted while installing the amps was the positive terminal to the battery, which I went ahead and disconnected the 1500d from and cleaned the connections and reinstalled. But there was absolutely no difference. I am skeptical about there being a grounding issue because I have it grounded in the exact same location that I had my old POS 250w lighting audio amp grounded.
I am feeling frusterated because I spent about 15 hours installing new speakers, headunit, amps, and wiring and now im running into this ****. Any pointers would be really appreciated.